RUDPClient/openspec/changes/archive/2026-03-28-add-client-side-combat-event-handling/specs/client-authoritative-player-state/spec.md

ADDED Requirements

Requirement: Client-owned authoritative player presentation can consume authoritative combat-result deltas

The client-owned authoritative player presentation model SHALL accept authoritative combat-result updates in addition to full PlayerState snapshots. Applying an authoritative CombatEvent for a player MUST be able to adjust the client-owned HP, death state, or related combat presentation truth for that player until a newer authoritative PlayerState snapshot refreshes the full state.

Scenario: Authoritative combat event updates owned player presentation state

• WHEN the client applies a CombatEvent that targets or otherwise affects a known player
• THEN that player's owned authoritative presentation state updates to reflect the authoritative combat result
• THEN a later accepted PlayerState snapshot remains allowed to refresh the full authoritative state for that player